Origin Of The Earth

Description

Open pit mining often results in a large hole or pit being formed in the process of extracting a mineral. Deposits mined by open pit techniques are generally divided into horizontal layers called benches. The thickness of the benches depends on the type of deposit & the mineral being mined. Mining is generally conducted on a number of levels at any one time.

Description

Illustrating the nine planets which revolve around the Sun. Satellites of the planets are also shown. Mounted on base with 12 zodiac signs

Description

Showing factors that cause pollution both in air and in water.

Description

Physical relief with light off and Physical cum political relief with light on.